1 /* 2 * linux/drivers/devfreq/governor_performance.c 3 * 4 * Copyright (C) 2011 Samsung Electronics 5 * MyungJoo Ham <myungjoo.ham@samsung.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12 #include <linux/devfreq.h> 13 #include "governor.h" 14 15 static int devfreq_performance_func(struct devfreq *df, 16 unsigned long *freq) 17 { 18 /* 19 * target callback should be able to get floor value as 20 * said in devfreq.h 21 */ 22 if (!df->max_freq) 23 *freq = UINT_MAX; 24 else 25 *freq = df->max_freq; 26 return 0; 27 } 28 29 static int performance_init(struct devfreq *devfreq) 30 { 31 return update_devfreq(devfreq); 32 } 33 34 const struct devfreq_governor devfreq_performance = { 35 .name = "performance", 36 .init = performance_init, 37 .get_target_freq = devfreq_performance_func, 38 .no_central_polling = true, 39 }; 40